<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .container{
      width: 100%;

      display: flex;
      justify-content: center;
      align-items: center;
      background: #f0f0f0;
    }
    .bell{
      width: 100px;
      object-fit: contain;
      margin-top: 50px;
      animation: bell 0.6s  ease-in-out alternate infinite;
      transform-origin: center top
    }
    @keyframes bell {
      0%{
        transform: rotate(-60deg);
      }
      100%{
        transform: rotate(60deg);
      }
    }


  </style>
</head>
<body>
  <div class="container">
    <img src="../img/bell.png" alt="" class="bell">
  </div>
  
</body>
</html>